4. Uncontrolled diabetes mellitus, asthma, seizure disorder, uncontrolled hypertension, (uncontrolled hypertension is defined as Systolic BP > 150 mm or Hg or diastolic BP > 95 mm or Hg on 2 consecutive BP readings 15 minutes apart at the time of screening) or unstable medical illness. Moderate to severe renal disease - moderate renal failure is defined as serum Creatinine >1.3 mg/dl in women and > 1.5 mg/dl in men, at the time of screening.